反应详情

To a suspension of 5-bromo-6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-N-(tetrahydro-pyran-4-yl)-nicotinamide (200 mg, 0.42 mmol) in 1,2-dimethoxyethane (1 mL) was added trimethylboroxine (88 μL, 0.64 mmol), aqueous sodium carbonate (1 M, 0.64 mL, 0.64 mmol) and tetrakis(triphenylphosphine)palladium(0) (49 mg, 0.04 mmol). The reaction mixture was then irradiated in the microwave for 20 min at 140° C. under an argon atmosphere. It was diluted with ethyl acetate (10 mL) and washed with water (10 mL) and brine (10 mL). The aqueous layers were extracted with ethyl acetate (10 mL) and the combined organic layers were dried over sodium sulfate. Trituration from tert-butylmethylether afforded the title compound (87 mg, 50%) which was obtained as a white solid. MS: m/e=408.4 [M+H]+

1. customThe reaction mixture was then irradiated in the microwave for 20 min at 140° C. under an argon atmosphere
2. washwashed with water (10 mL) and brine (10 mL)
3. extractionThe aqueous layers were extracted with ethyl acetate (10 mL)
4. dry with materialthe combined organic layers were dried over sodium sulfate